Venting device for closed vessels



I Patent'd Sept. 20, I898. J. n. MATHER.

' VENTING DEVICE FOR CLOSED VESSELS.

(Application filed Jam. 24, 1898.) (No Model.)

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NITED I STATES JESSE D. MATI-IER, OF CLIFTON SPRINGS, NEIV YORK.

VENTIING DEVICE FOR CLOS/ED VESSELS.

SPECIFICATION formingpart of Letters Patent No. 611,040, dated September 20, 1898.

Application filed January 24, 1898. Serial No. 667,813. (No model!) To all whom it may concern.-

Be it known that I, JESSE D. MATHER, a citizen of the United States, residing at Clifton Springs, in the county of Ontario and State of New York, have invented a new and useful Improvement in Venting Devices for Closed Vessels, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

This invention relates to improvements in venting devices for cans, tanks, and the like of that class in which the top or cap is provided with a tube one end of which extends upward through the top or cap and its other end terminates beneath the cap and is provided with a valve normally seated on its upper end and forced therefrom by the admission of air through the longer arm of the tube.

The novelty in the present instance resides in the peculiar construction, arrangement,

and adaptation of parts, all as more fully hereinafter described, shown in the drawin gs, and then particularly pointed out in the claim.

The invention is hereinafter fully described, and more particularly pointed out in the claim.

Referring to the drawings, Figure 1 shows an ordinary can with parts broken away to uncover the invention; Fig. 2, a side elevation of the device, drawn to an exaggerated scale, parts being vertically sectioned; and Fig. 3, a view of the device seen as indicated by arrow 3 in Fig. 2, the can-top being wholly omitted.

In the drawings, A is an ordinary can for holding gasolene, kerosene, or other liquids provided with an ordinary threaded top piece B, having an opening through it through which the can is filled. O is a screwcap for covering or closing the opening through the part B into the can. To the upper plate or sheet a of the screw-cap I secure a bent tube D, having one end piercing said plate a and opening outside thereof. The other end of the tube terminates beneath the plate 0. and

at its lower end with openings e c, which part c constitutes a cage for the valve and serves to confine the latter near the end of the tube. Now it is evident that when liquid is drawn from the can air will flow in at the upper end f of the tube and pressing against the lower surface of the valve will lift the latter off of its seat on the tube and open a passage for the inflow of air to take the place of the liquid drawn out. It will also be understood that on account of the action of gravity the normal position of the valve is upon its seat on the end of the tube, so that ordinarily or when no liquid is being drawn from the vessel the passage through the tube will be closed against the outflow of vapor that might rise from the surface of theinclosed liquid.

If the liquid be drawn from the can through an ordinary spout E, the can would need to be tipped, and thus small parts of the liquid might be thrown into the cage 0. To provide for this, the openings 6 e are formed to permit of the ready escape of any liquid that might thus enter the cage.

It is thought better to have an opening cl at the top of the part c for the inflowing air. However, the openings 6 6 would answer this purpose should it be wished to close the upper end of the cage by extending it to join the plate a.

The vessel A may be a closed cask or tank of any size, the liquid drawn out at the bottom through an ordinary faucet F.

Having thus described my invention, what I claim is- The combination with a vessel and its top, of a U-shaped tube supported from said top and having its longer leg extended through the top and its shorter leg terminating be substantially as and for the purpose speci- IO neath the same, a ball-valve normally seated lied. on the upper end of the shorter leg, and a In Witness whereof I have hereunto set my cage sleeved upon said shorter leg and sehand, this 20th day of January, 1898, in the 5 cured thereto forming a receptacle about the presence of two subscribing Witnesses.

said leg below the valve-scat with its upper J ESSE D. MATIIER. end open and extended into proximity to the \Vitnesses:

top of the vessel and its lower portion pro- JNO. ll. STEPHENS,

vided with openings below said valveseat, MAY CONKLTN. 

